Balancing Equations & Types of Reactions

Balancing Equations & Types of Reactions

Assessment

Flashcard

Chemistry

11th - 12th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a synthesis reaction?

Back

A synthesis reaction is a type of chemical reaction where two or more simple substances combine to form a more complex product. Example: 2 H₂ + O₂ → 2 H₂O.

2.

FLASHCARD QUESTION

Front

What is a decomposition reaction?

Back

A decomposition reaction is a type of chemical reaction where a single compound breaks down into two or more simpler products. Example: 2 H₂O → 2 H₂ + O₂.

3.

FLASHCARD QUESTION

Front

What is a combustion reaction?

Back

A combustion reaction is a type of chemical reaction that occurs when a substance combines with oxygen, releasing energy in the form of light and heat. Example: C₂H₄ + 3 O₂ → 2 CO₂ + 2 H₂O.

4.

FLASHCARD QUESTION

Front

What is a single displacement reaction?

Back

A single displacement reaction is a type of chemical reaction where one element replaces another in a compound. Example: Zn + 2 HCl → ZnCl₂ + H₂.

5.

FLASHCARD QUESTION

Front

What is a double displacement reaction?

Back

A double displacement reaction is a type of chemical reaction where two compounds exchange ions or bonds to form two new compounds. Example: AgNO₃ + NaCl → AgCl + NaNO₃.

6.

FLASHCARD QUESTION

Front

What are coefficients in a chemical equation?

Back

Coefficients are the numbers placed in front of the compounds in a chemical equation to indicate the number of molecules or moles of each substance involved in the reaction.

7.

FLASHCARD QUESTION

Front

What are subscripts in a chemical formula?

Back

Subscripts are the small numbers written to the lower right of an element symbol in a chemical formula, indicating the number of atoms of that element in a molecule. Example: In H₂O, the '2' is a subscript indicating there are two hydrogen atoms.

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